Construction of cylinders for gas-engines.



2 SHEETS-SHEET 1.

PATENTE) MAY 3'0, 1905.

K. DE LA SAULX. CONSTRUCTION 0F CYLINDERS FOR GAS ENGINES.

APPLICATION FILED MAR.30,1904.

No. 790,925. PATENTBD MAY 30, 1905.

F. K. DE LA SAULX. CONSTRUCTION 0F CYLINDBRS POR GAS ENGINES.

APPLICATION FILED MAB.30, 1904.

2 SHEETS-SHEET 2.

No. 790,925. f

"NITED STATES Patented May e0, 1905. n

PATENT OEEICE.

FREDERIC KRAFT DE LA SAULX, OF SERAING, BELGIUM.

SPECIFICATION forming part of Letters Patent No. 790,925, dated. May 30,1905. Application tied March 30, 1904. semi No. 200,852.

To a/ZZ whom, it' may 'concern/.-

Be it known that I, FREDERIC KRAFT DE LA SAULX, engineer, a subject ofthe King of Belgium, residing at Seraing, in the Kingdom of Belgium,have invented certain new and useful Improvements in the Construction ofCylinders for Gas-Engines, of which the following is a specification.

This invention relates to the construction of cylinders `forvgas-engines, and has Afor its purpose to provide a new and improvedconstruction for double-acting gas-engines especially adapted fortandem-working engines.

Another object of the invention is to provide for a constructionallowing of opening easily a double-acting cylinder, being of absolutelysymmetrical structure and avoiding internal tensions resulting fromunequal repartition of the cast-iron masses; and a further object of theinvention is to provide means for avoiding the traction stresses on thebody of the cylinder resulting from the pressure of the explosion on thecylinder-heads.

l/Vith these objects in view my invention essentially consists incertain novel features of construction and combinations of parts, aswill be explained in the following description, and pointed out in theappended claims.

Referring to the annexed drawings,`Figure 1 is a sectional plan of thecylinder of a gasengine constructed according to the invention,l

showing only the essential parts of the cylinder to which the inventionrelates. Fig. 2 is a vertical section through the axis of the cylinder,said section being taken on line A A, Fig. 1. Fig. 3 is a transversesection taken on line B B, Figs. l, Q.

l is a frame mounted on the foundation of the engine and forming asernicircular trough 2, in which is placed the cylindrical body 3 of thecylinder, provided with an outer jacket 4, resting in the trough 2. Thetrough 2 is closed at its upper part by a semicircular cover 5, fixed tothe trough by aid of bolts 6. The space 7 between the cylindrical body 3and thc outer jacket 4 is filled with water and used as water-jacket.One or more rings 8 of suitable material-for example,A india rubber-areused to secure a water-tight joint between the outer jacket 4 and thetrough 2.

The cylindrical body Sis provided at each end and in the upper part witha port 9, adaptedto receive the seat of an admission-valve (not shown onthe drawings) of any suitable construction. Two ports 10 are similarlydisposed at the ends in the lower part of the cylinder and adapted toreceive the seats for the outlet-valves. These ports 9 and 10 areabsolutely identical in position and dimension in such a manner that thestructure ofthe cylinder is a quite symmetrical one with regard totheaxes of the cylinder.

The cylinder is provided at each end with a head or cover 11, suitablyshaped or cut at 12, so as to form a passage 13 corresponding to theports 9 and 10. The said heads may be litted with any auxiliary devices,such as an igniting device and valves, (not shown,) as ordinarily usedfor starting with compressed air.

The heads 11 are bolted to the cylinder-bod y 3 by pins 14 at the upperand lower parts of the cylinder where the passages 13 are formed. On thesides they are connected to each other by bolts 15 passing from one sideof the cylinder to the other. The section of said bolts is sufficientlystrong to resist the total pressure on the'heads resulting from theexplosion in such a manner that the cylinder is released from anylongitudinal stress or pulling action.

The frame 1 forms two lateral extensions 16, on which are mounted side'frames 17 by means of bolts 18. The said side frames are connected bypins or bolts 19 with the outer jacket 4 and are jointed to the lateralguides 20 for the cross-head 21, to which is connected the rod 22 of thepiston 23, sliding to and fro in the cylinder 3 and provided with aconnecting-rod 24, passing through the head 1l at the rear of thecylinder. The said rod 24 may serve only as guide-rod for the piston orbe connected to the piston of a second similar cylinder in case of atandem gas-engine. To the cross-head 21 is connected the connectingrod25, acting, as usually, on the crank (not shown) of the motor-shaft.

The cylinder 3 is held further in position by means of suitable keys 26,placed between projections 27 of the side frames 17 and cor- IOOresponding projections 28 of the outer jacket of the cylinder.

Having thus described my invention, what I claim is- 1. Theabove-described construction of gasengine cylinder comprising a cylinderof symmetric structure, suitable heads for said cylinder, two sideframes and a lower frame forming atrough between the two sides frames,said trough being adapted to support the cylinder.

2. I-n combination a frame, two side frames bolted on said frame, atrough formed between the two side frames, a cylinder, an outer jacketfor said cylinder supported by the trough, a cover for the trough, meansfor holding the cylinder in position within the trough and suitableheads bolted to the cylinder, substantially as described.

3. In combination a frame, two side frames bolted on said frame, atrough formed integrally with the frame between the two side frames, acylinder, an outer jacket for said cylinder, supported by the trough, acover for the trough bolted thereto, Ineans for securing a water-tightjoint between the outer jacket of the cylinder and the trough, keysholding the cylinder in position Within the trou-gh and suitable headsbolted to the cylinder substantially as described.

4. In combination a frame, two side Jframes bolted on said frame, atrough formed between the two side frames, a cylinder, an

outer jacket for said cylinder supported by the trough, a cover for thetrough bolted thereto, means for securing a water-tight joint betweenthe outer jacket of the cylinder and the supporting-trough, keys holdingthe cylinder in position within the trough, a port at each end and atthe upper part of the cylinder, a similar port at each end and at thelower part of the cylinder and, heads bolted to the ends of thecylinder, said heads being shaped so as to form passages correspondingto the ports at the ends of the cylinder, substantially as described.

5. In combination a frame, two side frames bolted on said frame, atroughformed between the two side frames, a cylinder', an outer jacket forsaid cylinder supported by the trough, a cover for the trough boltedthereto, means for securing a water-tight joint between the outer jacketof the cylinder and ther supporting-trough, means for holding thecylinder in position within the trough, suitable heads bolted to thecylinder' ends and bolts connecting the heads to each othersubstantially as described. i

In witness whereof I have hereunto set my hand in presence of twowitnesses.

FREDERIC KRAFT DE LA SAULX.

Witnesses:

H. SAVAGE, V. GURIN.

